What is JQuery?

   A free and open source JavaScript library that is used by Web developers to navigate HTML documents, handle events, perform animations and add AJAX interactions to WebPages.
jQuery was developed by John Resig and is licensed under the MIT License and the GNU General Public License. Some of the many sites using jQuery include Google (code search), Twitter, Dell Inc., CBS News, Slashdot and others.

             It is a fast and concise JavaScript library that simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development.

JQuery is used in web application to improve user experience. 

 Advantages of using Jquery using in Web Application :

1. It Improve the performance of the web application
2. It is light weight
3. Its language independent - It can be use with many different language, eg: Asp.Net, PHP, HTML, JSP,etc
4. It is browser compatible - Runs in most browser.
5. It is easy to learn - it uses javascript syntax.
6. You can do complex UI functionality with few lines of code.
7. You can implement ajax within your web application.  It can be used to avoid round trip (avoid page post back) yet able to perform database operation.
8. It is open source library, which is also officially integrated in visual studio 2010.
9. You will find lot of JQuery functionality shared other developers, which helps you to avoid in reinventing the wheel.


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